Craigslist slang to indicate that a forum post has received some flags. This is also the basis for "buzz!" When a forum post is flagged, the following haiku appears:
thanks for flagging this
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hey, a dragonfly!

Dragonfly references mean that the thread is destined to be Isled soon.

an insect that for most of its life lives in the water and feeds on small fish. when grown the dargon fly leaves the water and goes on with life to live in the trees and eats small insects. There are multiple species of dragon fly and they come in a multitude of colors.
A.K.A- troll needle

Dree- "Michelle whats that weird bug thing flying around."
Michelle- "oh thats just a few dragon flies, i think ill name it Connor or Paul, which one?"